./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:53:25,421 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:53:25,538 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 21:53:25,547 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:53:25,548 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:53:25,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:53:25,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:53:25,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:53:25,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:53:25,594 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:53:25,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:53:25,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:53:25,596 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:53:25,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:53:25,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:53:25,599 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:53:25,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:53:25,600 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:53:25,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:53:25,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:53:25,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:53:25,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:53:25,603 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 21:53:25,603 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:53:25,604 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:53:25,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:53:25,605 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:53:25,606 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:53:25,606 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:53:25,607 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:53:25,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:53:25,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:53:25,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:53:25,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:53:25,609 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:53:25,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:53:25,610 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:53:25,610 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:53:25,611 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:53:25,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:53:25,611 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:53:25,612 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 [2023-11-06 21:53:25,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:53:25,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:53:25,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:53:25,931 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:53:25,931 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:53:25,933 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2023-11-06 21:53:29,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:53:29,309 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:53:29,309 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2023-11-06 21:53:29,319 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/data/51e90930f/7a3b95224d7e4505be2f8d6eac4f584d/FLAG020ba2431 [2023-11-06 21:53:29,337 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/data/51e90930f/7a3b95224d7e4505be2f8d6eac4f584d [2023-11-06 21:53:29,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:53:29,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:53:29,343 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:53:29,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:53:29,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:53:29,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:53:29" (1/1) ... [2023-11-06 21:53:29,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e27eed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:29, skipping insertion in model container [2023-11-06 21:53:29,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:53:29" (1/1) ... [2023-11-06 21:53:29,370 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:53:29,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:53:29,552 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:53:29,568 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:53:29,583 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:53:29,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:29 WrapperNode [2023-11-06 21:53:29,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:53:29,585 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:53:29,586 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:53:29,586 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:53:29,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:29" (1/1) ... [2023-11-06 21:53:29,604 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:29" (1/1) ... [2023-11-06 21:53:29,619 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 33 [2023-11-06 21:53:29,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:53:29,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:53:29,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:53:29,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:53:29,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:29" (1/1) ... [2023-11-06 21:53:29,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:29" (1/1) ... [2023-11-06 21:53:29,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:29" (1/1) ... [2023-11-06 21:53:29,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:29" (1/1) ... [2023-11-06 21:53:29,636 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:29" (1/1) ... [2023-11-06 21:53:29,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:29" (1/1) ... [2023-11-06 21:53:29,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:29" (1/1) ... [2023-11-06 21:53:29,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:29" (1/1) ... [2023-11-06 21:53:29,641 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:53:29,641 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:53:29,642 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:53:29,642 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:53:29,642 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:29" (1/1) ... [2023-11-06 21:53:29,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:53:29,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:53:29,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:53:29,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:53:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:53:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-11-06 21:53:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-11-06 21:53:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:53:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:53:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2023-11-06 21:53:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2023-11-06 21:53:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:53:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:53:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:53:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:53:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:53:29,809 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:53:29,811 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:53:30,020 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:53:30,026 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:53:30,026 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:53:30,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:30 BoogieIcfgContainer [2023-11-06 21:53:30,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:53:30,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:53:30,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:53:30,049 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:53:30,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:53:29" (1/3) ... [2023-11-06 21:53:30,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276a0982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:53:30, skipping insertion in model container [2023-11-06 21:53:30,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:29" (2/3) ... [2023-11-06 21:53:30,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276a0982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:53:30, skipping insertion in model container [2023-11-06 21:53:30,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:30" (3/3) ... [2023-11-06 21:53:30,052 INFO L112 eAbstractionObserver]: Analyzing ICFG simple-recursive.c [2023-11-06 21:53:30,085 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:53:30,085 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 21:53:30,157 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:53:30,165 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4ab8639c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:53:30,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-06 21:53:30,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 21:53:30,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 21:53:30,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:53:30,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:30,179 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-06 21:53:30,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:30,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1588237025, now seen corresponding path program 1 times [2023-11-06 21:53:30,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:30,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800686744] [2023-11-06 21:53:30,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:30,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:30,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:30,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:30,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800686744] [2023-11-06 21:53:30,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800686744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:30,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:30,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:53:30,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219508684] [2023-11-06 21:53:30,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:30,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:53:30,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:30,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:53:30,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:53:30,874 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:30,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:53:30,999 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2023-11-06 21:53:31,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:53:31,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 21:53:31,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:53:31,008 INFO L225 Difference]: With dead ends: 45 [2023-11-06 21:53:31,008 INFO L226 Difference]: Without dead ends: 18 [2023-11-06 21:53:31,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-06 21:53:31,015 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:53:31,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 81 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:53:31,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-06 21:53:31,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-11-06 21:53:31,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:31,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-11-06 21:53:31,051 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2023-11-06 21:53:31,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:53:31,052 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-11-06 21:53:31,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:31,052 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-11-06 21:53:31,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-06 21:53:31,053 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:53:31,053 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:31,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:53:31,054 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-06 21:53:31,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:31,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1020302327, now seen corresponding path program 1 times [2023-11-06 21:53:31,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:31,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14301538] [2023-11-06 21:53:31,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:31,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:31,684 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:31,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:31,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14301538] [2023-11-06 21:53:31,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14301538] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:53:31,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903831310] [2023-11-06 21:53:31,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:31,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:53:31,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:53:31,692 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:53:31,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 21:53:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:31,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 55 conjunts are in the unsatisfiable core [2023-11-06 21:53:31,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:53:31,904 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 21:53:32,208 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-06 21:53:32,372 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-06 21:53:32,375 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:32,376 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:53:32,845 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:32,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903831310] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 21:53:32,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-06 21:53:32,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 11] total 30 [2023-11-06 21:53:32,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314458821] [2023-11-06 21:53:32,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:32,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 21:53:32,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:32,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 21:53:32,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=825, Unknown=0, NotChecked=0, Total=930 [2023-11-06 21:53:32,856 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 12 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:33,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:53:33,219 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2023-11-06 21:53:33,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 21:53:33,220 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-06 21:53:33,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:53:33,222 INFO L225 Difference]: With dead ends: 19 [2023-11-06 21:53:33,222 INFO L226 Difference]: Without dead ends: 18 [2023-11-06 21:53:33,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=147, Invalid=1259, Unknown=0, NotChecked=0, Total=1406 [2023-11-06 21:53:33,225 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:53:33,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 37 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:53:33,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-06 21:53:33,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2023-11-06 21:53:33,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-11-06 21:53:33,237 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2023-11-06 21:53:33,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:53:33,238 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-11-06 21:53:33,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-11-06 21:53:33,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-06 21:53:33,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:53:33,241 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:33,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:53:33,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:53:33,448 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-06 21:53:33,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:33,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1564601124, now seen corresponding path program 1 times [2023-11-06 21:53:33,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:33,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108130702] [2023-11-06 21:53:33,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:33,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,864 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:33,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:33,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108130702] [2023-11-06 21:53:33,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108130702] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:53:33,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048676911] [2023-11-06 21:53:33,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:33,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:53:33,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:53:33,872 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:53:33,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 21:53:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 55 conjunts are in the unsatisfiable core [2023-11-06 21:53:33,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:53:33,999 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 21:53:34,165 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-06 21:53:34,290 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-06 21:53:34,295 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:34,295 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:53:34,551 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:34,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048676911] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:53:34,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:53:34,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-11-06 21:53:34,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641156650] [2023-11-06 21:53:34,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:53:34,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-06 21:53:34,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:34,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-06 21:53:34,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930 [2023-11-06 21:53:34,556 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 31 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 19 states have internal predecessors, (32), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:34,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:53:34,847 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2023-11-06 21:53:34,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 21:53:34,848 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 19 states have internal predecessors, (32), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-06 21:53:34,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:53:34,849 INFO L225 Difference]: With dead ends: 32 [2023-11-06 21:53:34,849 INFO L226 Difference]: Without dead ends: 31 [2023-11-06 21:53:34,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=206, Invalid=1276, Unknown=0, NotChecked=0, Total=1482 [2023-11-06 21:53:34,852 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 29 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:53:34,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 51 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:53:34,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-06 21:53:34,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-06 21:53:34,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:34,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2023-11-06 21:53:34,862 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 16 [2023-11-06 21:53:34,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:53:34,862 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2023-11-06 21:53:34,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 19 states have internal predecessors, (32), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:34,863 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2023-11-06 21:53:34,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-06 21:53:34,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:53:34,864 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1] [2023-11-06 21:53:34,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 21:53:35,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:53:35,070 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-06 21:53:35,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:35,071 INFO L85 PathProgramCache]: Analyzing trace with hash 689702948, now seen corresponding path program 2 times [2023-11-06 21:53:35,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:35,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517837150] [2023-11-06 21:53:35,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:35,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:35,897 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:53:35,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:35,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517837150] [2023-11-06 21:53:35,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517837150] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:53:35,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143077352] [2023-11-06 21:53:35,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:53:35,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:53:35,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:53:35,901 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:53:35,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 21:53:35,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 21:53:35,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:53:35,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-06 21:53:35,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:53:36,063 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-06 21:53:36,086 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-06 21:53:36,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:53:36,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143077352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:36,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:53:36,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [21] total 25 [2023-11-06 21:53:36,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690298329] [2023-11-06 21:53:36,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:36,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:53:36,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:36,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:53:36,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2023-11-06 21:53:36,089 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 6 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:36,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:53:36,138 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2023-11-06 21:53:36,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:53:36,139 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-11-06 21:53:36,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:53:36,140 INFO L225 Difference]: With dead ends: 31 [2023-11-06 21:53:36,140 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 21:53:36,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2023-11-06 21:53:36,145 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:53:36,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 18 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:53:36,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 21:53:36,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 21:53:36,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:36,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 21:53:36,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2023-11-06 21:53:36,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:53:36,148 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 21:53:36,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:36,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 21:53:36,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 21:53:36,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-06 21:53:36,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-06 21:53:36,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 21:53:36,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:53:36,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 21:53:36,795 INFO L899 garLoopResultBuilder]: For program point fooEXIT(lines 11 20) no Hoare annotation was computed. [2023-11-06 21:53:36,795 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2023-11-06 21:53:36,795 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 19) no Hoare annotation was computed. [2023-11-06 21:53:36,796 INFO L895 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: (let ((.cse6 (select |old(#memory_int)| |foo_#in~p#1.base|))) (let ((.cse2 (select .cse6 |foo_#in~p#1.offset|)) (.cse8 (select |#memory_int| |foo_~p#1.base|)) (.cse9 (select |#memory_int| |foo_#in~p#1.base|))) (let ((.cse3 (not (= |foo_#in~p#1.offset| 0))) (.cse1 (select .cse9 0)) (.cse0 (select .cse8 0)) (.cse4 (select .cse9 |foo_#in~p#1.offset|)) (.cse5 (<= (+ 2147483650 .cse2) 0))) (and (or (and (= 10 .cse0) (= .cse1 10)) (not (= .cse2 10)) .cse3) (or (<= .cse4 2147483646) (<= 2147483647 .cse2) .cse5) (or (< 11 (select .cse6 0)) .cse3 (and (<= .cse1 11) (<= .cse0 11) (= |foo_~p#1.offset| 0)) .cse5) (or (let ((.cse7 (select .cse8 |foo_~p#1.offset|))) (and (<= .cse7 19) (<= 0 (+ 2147483649 .cse7)) (<= 0 (+ 2147483649 .cse4)))) .cse5))))) [2023-11-06 21:53:36,796 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 19) no Hoare annotation was computed. [2023-11-06 21:53:36,796 INFO L899 garLoopResultBuilder]: For program point L12-1(lines 11 20) no Hoare annotation was computed. [2023-11-06 21:53:36,797 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 20) the Hoare annotation is: (let ((.cse1 (select |old(#memory_int)| |foo_#in~p#1.base|))) (let ((.cse5 (select .cse1 |foo_#in~p#1.offset|)) (.cse6 (select |#memory_int| |foo_#in~p#1.base|))) (let ((.cse0 (select .cse6 0)) (.cse2 (not (= |foo_#in~p#1.offset| 0))) (.cse4 (select .cse6 |foo_#in~p#1.offset|)) (.cse3 (<= (+ 2147483650 .cse5) 0))) (and (or (<= .cse0 11) (< 11 (select .cse1 0)) .cse2 .cse3) (or (<= .cse4 2147483646) (<= 2147483647 .cse5) .cse3) (or (= .cse0 10) (not (= .cse5 10)) .cse2) (or (< 0 (+ 2147483650 .cse4)) .cse3))))) [2023-11-06 21:53:36,797 INFO L899 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2023-11-06 21:53:36,797 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 21:53:36,797 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 21:53:36,797 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 21:53:36,797 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (and (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) 0) 10) (= |ULTIMATE.start_main_~p~0#1.offset| 0)) [2023-11-06 21:53:36,798 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-11-06 21:53:36,798 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 21:53:36,798 INFO L899 garLoopResultBuilder]: For program point L22(lines 22 28) no Hoare annotation was computed. [2023-11-06 21:53:36,798 INFO L899 garLoopResultBuilder]: For program point plusFINAL(lines 6 9) no Hoare annotation was computed. [2023-11-06 21:53:36,798 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 6 9) the Hoare annotation is: (let ((.cse3 (select |old(#memory_int)| |plus_#in~p.base|))) (let ((.cse4 (select .cse3 |plus_#in~p.offset|)) (.cse6 (select |#memory_int| |plus_#in~p.base|))) (let ((.cse0 (not (= |plus_#in~p.offset| 0))) (.cse1 (select .cse6 0)) (.cse2 (<= (+ 2147483650 .cse4) 0))) (and (or .cse0 (<= .cse1 11) .cse2 (< 11 (select .cse3 0))) (or (not (= .cse4 10)) .cse0 (= .cse1 10)) (or .cse2 (< 19 .cse4) (let ((.cse5 (select .cse6 |plus_#in~p.offset|))) (and (<= 0 (+ 2147483649 .cse5)) (<= .cse5 19)))))))) [2023-11-06 21:53:36,798 INFO L899 garLoopResultBuilder]: For program point plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2023-11-06 21:53:36,799 INFO L899 garLoopResultBuilder]: For program point plusEXIT(lines 6 9) no Hoare annotation was computed. [2023-11-06 21:53:36,799 INFO L895 garLoopResultBuilder]: At program point L8(line 8) the Hoare annotation is: (let ((.cse7 (select |old(#memory_int)| |plus_#in~p.base|))) (let ((.cse0 (select .cse7 |plus_#in~p.offset|)) (.cse3 (select |#memory_int| plus_~p.base)) (.cse2 (select |#memory_int| |plus_#in~p.base|))) (let ((.cse6 (select .cse2 |plus_#in~p.offset|)) (.cse5 (select .cse3 plus_~p.offset)) (.cse1 (not (= |plus_#in~p.offset| 0))) (.cse4 (<= (+ 2147483650 .cse0) 0))) (and (or (not (= .cse0 10)) .cse1 (and (<= (select .cse2 0) 11) (<= (select .cse3 0) 11) (= plus_~p.offset 0))) (or .cse4 (< 19 .cse0) (and (<= 0 (+ 2147483649 .cse5)) (<= 0 (+ 2147483650 .cse6)))) (or (and (<= .cse6 2147483645) (<= .cse5 2147483646)) .cse1 .cse4 (< 11 (select .cse7 0))))))) [2023-11-06 21:53:36,799 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2023-11-06 21:53:36,799 INFO L899 garLoopResultBuilder]: For program point plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2023-11-06 21:53:36,799 INFO L899 garLoopResultBuilder]: For program point L7-1(line 7) no Hoare annotation was computed. [2023-11-06 21:53:36,807 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-11-06 21:53:36,810 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:53:36,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:53:36 BoogieIcfgContainer [2023-11-06 21:53:36,814 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:53:36,815 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:53:36,815 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:53:36,816 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:53:36,816 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:30" (3/4) ... [2023-11-06 21:53:36,818 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:53:36,823 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2023-11-06 21:53:36,824 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure plus [2023-11-06 21:53:36,828 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-06 21:53:36,828 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 21:53:36,829 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 21:53:36,829 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:53:36,829 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:53:36,876 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:53:36,877 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:53:36,877 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:53:36,878 INFO L158 Benchmark]: Toolchain (without parser) took 7536.78ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 78.3MB in the beginning and 72.7MB in the end (delta: 5.5MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2023-11-06 21:53:36,878 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 102.8MB. Free memory was 56.4MB in the beginning and 56.3MB in the end (delta: 134.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:53:36,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.19ms. Allocated memory is still 123.7MB. Free memory was 78.1MB in the beginning and 68.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 21:53:36,879 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.29ms. Allocated memory is still 123.7MB. Free memory was 67.9MB in the beginning and 66.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:53:36,880 INFO L158 Benchmark]: Boogie Preprocessor took 20.20ms. Allocated memory is still 123.7MB. Free memory was 66.5MB in the beginning and 65.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:53:36,880 INFO L158 Benchmark]: RCFGBuilder took 386.97ms. Allocated memory is still 123.7MB. Free memory was 65.5MB in the beginning and 55.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 21:53:36,881 INFO L158 Benchmark]: TraceAbstraction took 6769.67ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 94.3MB in the beginning and 75.9MB in the end (delta: 18.5MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2023-11-06 21:53:36,881 INFO L158 Benchmark]: Witness Printer took 62.26ms. Allocated memory is still 151.0MB. Free memory was 75.9MB in the beginning and 72.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:53:36,883 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 102.8MB. Free memory was 56.4MB in the beginning and 56.3MB in the end (delta: 134.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.19ms. Allocated memory is still 123.7MB. Free memory was 78.1MB in the beginning and 68.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.29ms. Allocated memory is still 123.7MB. Free memory was 67.9MB in the beginning and 66.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.20ms. Allocated memory is still 123.7MB. Free memory was 66.5MB in the beginning and 65.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 386.97ms. Allocated memory is still 123.7MB. Free memory was 65.5MB in the beginning and 55.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6769.67ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 94.3MB in the beginning and 75.9MB in the end (delta: 18.5MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. * Witness Printer took 62.26ms. Allocated memory is still 151.0MB. Free memory was 75.9MB in the beginning and 72.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 6.7s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 57 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 187 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 148 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 306 IncrementalHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 39 mSDtfsCounter, 306 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=3, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 17 PreInvPairs, 17 NumberOfFragments, 418 HoareAnnotationTreeSize, 17 FomulaSimplifications, 122 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 392 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 130 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 910 SizeOfPredicates, 45 NumberOfNonLiveVariables, 317 ConjunctsInSsa, 129 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 48/111 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 21:53:36,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92202813-2d28-465d-80e4-74b4c4deea49/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE